Until now, WordPress.com only offered “domain mapping” —serving a WordPress.com blog on your domain, but didn’t allow DNS control, that restricted users wanting email on their blog domains. Now, they’ve deployed a DNS editor for custom domains. “This free enhancement is available to everyone who uses domain mapping on WordPress.com. The ability to add some common DNS records (MX, TXT, CNAME, A) opens the door for services hosted elsewhere to work under the same domain as your blog. Integrating other hosted services with your domain, such as email (firstname.lastname@example.org) or other kinds of web content (wiki.example.com), can make your dot-com a more powerful branding tool,” states WordPress blog.